7 * This source file is subject to the new BSD license that is bundled
8 * with this package in the file LICENSE.txt.
9 * It is also available through the world-wide-web at this URL:
10 * http://framework.zend.com/license/new-bsd
11 * If you did not receive a copy of the license and are unable to
12 * obtain it through the world-wide-web, please send an email
13 * to license@zend.com so we can send you a copy immediately.
16 * @package Zend_Measure
17 * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
18 * @license http://framework.zend.com/license/new-bsd New BSD License
23 * Implement needed classes
25 require_once 'Zend/Measure/Abstract.php';
26 require_once 'Zend/Locale.php';
29 * Class for handling energy conversions
32 * @package Zend_Measure
33 * @subpackage Zend_Measure_Energy
34 * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
35 * @license http://framework.zend.com/license/new-bsd New BSD License
37 class Zend_Measure_Energy
extends Zend_Measure_Abstract
39 const STANDARD
= 'JOULE';
41 const ATTOJOULE
= 'ATTOJOULE';
42 const BOARD_OF_TRADE_UNIT
= 'BOARD_OF_TRADE_UNIT';
44 const BTU_THERMOCHEMICAL
= 'BTU_TERMOCHEMICAL';
45 const CALORIE
= 'CALORIE';
46 const CALORIE_15C
= 'CALORIE_15C';
47 const CALORIE_NUTRITIONAL
= 'CALORIE_NUTRITIONAL';
48 const CALORIE_THERMOCHEMICAL
= 'CALORIE_THERMOCHEMICAL';
49 const CELSIUS_HEAT_UNIT
= 'CELSIUS_HEAT_UNIT';
50 const CENTIJOULE
= 'CENTIJOULE';
51 const CHEVAL_VAPEUR_HEURE
= 'CHEVAL_VAPEUR_HEURE';
52 const DECIJOULE
= 'DECIJOULE';
53 const DEKAJOULE
= 'DEKAJOULE';
54 const DEKAWATT_HOUR
= 'DEKAWATT_HOUR';
55 const DEKATHERM
= 'DEKATHERM';
56 const ELECTRONVOLT
= 'ELECTRONVOLT';
58 const EXAJOULE
= 'EXAJOULE';
59 const EXAWATT_HOUR
= 'EXAWATT_HOUR';
60 const FEMTOJOULE
= 'FEMTOJOULE';
61 const FOOT_POUND
= 'FOOT_POUND';
62 const FOOT_POUNDAL
= 'FOOT_POUNDAL';
63 const GALLON_UK_AUTOMOTIVE
= 'GALLON_UK_AUTOMOTIVE';
64 const GALLON_US_AUTOMOTIVE
= 'GALLON_US_AUTOMOTIVE';
65 const GALLON_UK_AVIATION
= 'GALLON_UK_AVIATION';
66 const GALLON_US_AVIATION
= 'GALLON_US_AVIATION';
67 const GALLON_UK_DIESEL
= 'GALLON_UK_DIESEL';
68 const GALLON_US_DIESEL
= 'GALLON_US_DIESEL';
69 const GALLON_UK_DISTILATE
= 'GALLON_UK_DISTILATE';
70 const GALLON_US_DISTILATE
= 'GALLON_US_DISTILATE';
71 const GALLON_UK_KEROSINE_JET
= 'GALLON_UK_KEROSINE_JET';
72 const GALLON_US_KEROSINE_JET
= 'GALLON_US_KEROSINE_JET';
73 const GALLON_UK_LPG
= 'GALLON_UK_LPG';
74 const GALLON_US_LPG
= 'GALLON_US_LPG';
75 const GALLON_UK_NAPHTA
= 'GALLON_UK_NAPHTA';
76 const GALLON_US_NAPHTA
= 'GALLON_US_NAPHTA';
77 const GALLON_UK_KEROSENE
= 'GALLON_UK_KEROSINE';
78 const GALLON_US_KEROSENE
= 'GALLON_US_KEROSINE';
79 const GALLON_UK_RESIDUAL
= 'GALLON_UK_RESIDUAL';
80 const GALLON_US_RESIDUAL
= 'GALLON_US_RESIDUAL';
81 const GIGAELECTRONVOLT
= 'GIGAELECTRONVOLT';
82 const GIGACALORIE
= 'GIGACALORIE';
83 const GIGACALORIE_15C
= 'GIGACALORIE_15C';
84 const GIGAJOULE
= 'GIGAJOULE';
85 const GIGAWATT_HOUR
= 'GIGAWATT_HOUR';
86 const GRAM_CALORIE
= 'GRAM_CALORIE';
87 const HARTREE
= 'HARTREE';
88 const HECTOJOULE
= 'HECTOJOULE';
89 const HECTOWATT_HOUR
= 'HECTOWATT_HOUR';
90 const HORSEPOWER_HOUR
= 'HORSEPOWER_HOUR';
91 const HUNDRED_CUBIC_FOOT_GAS
= 'HUNDRED_CUBIC_FOOT_GAS';
92 const INCH_OUNCE
= 'INCH_OUNCE';
93 const INCH_POUND
= 'INCH_POUND';
94 const JOULE
= 'JOULE';
95 const KILOCALORIE_15C
= 'KILOCALORIE_15C';
96 const KILOCALORIE
= 'KILOCALORIE';
97 const KILOCALORIE_THERMOCHEMICAL
= 'KILOCALORIE_THERMOCHEMICAL';
98 const KILOELECTRONVOLT
= 'KILOELECTRONVOLT';
99 const KILOGRAM_CALORIE
= 'KILOGRAM_CALORIE';
100 const KILOGRAM_FORCE_METER
= 'KILOGRAM_FORCE_METER';
101 const KILOJOULE
= 'KILOJOULE';
102 const KILOPOND_METER
= 'KILOPOND_METER';
103 const KILOTON
= 'KILOTON';
104 const KILOWATT_HOUR
= 'KILOWATT_HOUR';
105 const LITER_ATMOSPHERE
= 'LITER_ATMOSPHERE';
106 const MEGAELECTRONVOLT
= 'MEGAELECTRONVOLT';
107 const MEGACALORIE
= 'MEGACALORIE';
108 const MEGACALORIE_15C
= 'MEGACALORIE_15C';
109 const MEGAJOULE
= 'MEGAJOULE';
110 const MEGALERG
= 'MEGALERG';
111 const MEGATON
= 'MEGATON';
112 const MEGAWATTHOUR
= 'MEGAWATTHOUR';
113 const METER_KILOGRAM_FORCE
= 'METER_KILOGRAM_FORCE';
114 const MICROJOULE
= 'MICROJOULE';
115 const MILLIJOULE
= 'MILLIJOULE';
116 const MYRIAWATT_HOUR
= 'MYRIAWATT_HOUR';
117 const NANOJOULE
= 'NANOJOULE';
118 const NEWTON_METER
= 'NEWTON_METER';
119 const PETAJOULE
= 'PETAJOULE';
120 const PETAWATTHOUR
= 'PETAWATTHOUR';
121 const PFERDESTAERKENSTUNDE
= 'PFERDESTAERKENSTUNDE';
122 const PICOJOULE
= 'PICOJOULE';
123 const Q_UNIT
= 'Q_UNIT';
125 const TERAELECTRONVOLT
= 'TERAELECTRONVOLT';
126 const TERAJOULE
= 'TERAJOULE';
127 const TERAWATTHOUR
= 'TERAWATTHOUR';
128 const THERM
= 'THERM';
129 const THERM_US
= 'THERM_US';
130 const THERMIE
= 'THERMIE';
132 const TONNE_COAL
= 'TONNE_COAL';
133 const TONNE_OIL
= 'TONNE_OIL';
134 const WATTHOUR
= 'WATTHOUR';
135 const WATTSECOND
= 'WATTSECOND';
136 const YOCTOJOULE
= 'YOCTOJOULE';
137 const YOTTAJOULE
= 'YOTTAJOULE';
138 const YOTTAWATTHOUR
= 'YOTTAWATTHOUR';
139 const ZEPTOJOULE
= 'ZEPTOJOULE';
140 const ZETTAJOULE
= 'ZETTAJOULE';
141 const ZETTAWATTHOUR
= 'ZETTAWATTHOUR';
144 * Calculations for all energy units
148 protected $_units = array(
149 'ATTOJOULE' => array('1.0e-18', 'aJ'),
150 'BOARD_OF_TRADE_UNIT' => array('3600000', 'BOTU'),
151 'BTU' => array('1055.0559', 'Btu'),
152 'BTU_TERMOCHEMICAL' => array('1054.3503', 'Btu'),
153 'CALORIE' => array('4.1868', 'cal'),
154 'CALORIE_15C' => array('6.1858', 'cal'),
155 'CALORIE_NUTRITIONAL' => array('4186.8', 'cal'),
156 'CALORIE_THERMOCHEMICAL' => array('4.184', 'cal'),
157 'CELSIUS_HEAT_UNIT' => array('1899.1005', 'Chu'),
158 'CENTIJOULE' => array('0.01', 'cJ'),
159 'CHEVAL_VAPEUR_HEURE' => array('2647795.5', 'cv heure'),
160 'DECIJOULE' => array('0.1', 'dJ'),
161 'DEKAJOULE' => array('10', 'daJ'),
162 'DEKAWATT_HOUR' => array('36000', 'daWh'),
163 'DEKATHERM' => array('1.055057e+9', 'dathm'),
164 'ELECTRONVOLT' => array('1.6021773e-19', 'eV'),
165 'ERG' => array('0.0000001', 'erg'),
166 'EXAJOULE' => array('1.0e+18', 'EJ'),
167 'EXAWATT_HOUR' => array('3.6e+21', 'EWh'),
168 'FEMTOJOULE' => array('1.0e-15', 'fJ'),
169 'FOOT_POUND' => array('1.3558179', 'ft lb'),
170 'FOOT_POUNDAL' => array('0.04214011', 'ft poundal'),
171 'GALLON_UK_AUTOMOTIVE' => array('158237172', 'gal car gasoline'),
172 'GALLON_US_AUTOMOTIVE' => array('131760000', 'gal car gasoline'),
173 'GALLON_UK_AVIATION' => array('158237172', 'gal jet gasoline'),
174 'GALLON_US_AVIATION' => array('131760000', 'gal jet gasoline'),
175 'GALLON_UK_DIESEL' => array('175963194', 'gal diesel'),
176 'GALLON_US_DIESEL' => array('146520000', 'gal diesel'),
177 'GALLON_UK_DISTILATE' => array('175963194', 'gal destilate fuel'),
178 'GALLON_US_DISTILATE' => array('146520000', 'gal destilate fuel'),
179 'GALLON_UK_KEROSINE_JET' => array('170775090', 'gal jet kerosine'),
180 'GALLON_US_KEROSINE_JET' => array('142200000', 'gal jet kerosine'),
181 'GALLON_UK_LPG' => array('121005126.0865275', 'gal lpg'),
182 'GALLON_US_LPG' => array('100757838.45', 'gal lpg'),
183 'GALLON_UK_NAPHTA' => array('160831224', 'gal jet fuel'),
184 'GALLON_US_NAPHTA' => array('133920000', 'gal jet fuel'),
185 'GALLON_UK_KEROSINE' => array('170775090', 'gal kerosine'),
186 'GALLON_US_KEROSINE' => array('142200000', 'gal kerosine'),
187 'GALLON_UK_RESIDUAL' => array('189798138', 'gal residual fuel'),
188 'GALLON_US_RESIDUAL' => array('158040000', 'gal residual fuel'),
189 'GIGAELECTRONVOLT' => array('1.6021773e-10', 'GeV'),
190 'GIGACALORIE' => array('4186800000', 'Gcal'),
191 'GIGACALORIE_15C' => array('4185800000', 'Gcal'),
192 'GIGAJOULE' => array('1.0e+9', 'GJ'),
193 'GIGAWATT_HOUR' => array('3.6e+12', 'GWh'),
194 'GRAM_CALORIE' => array('4.1858', 'g cal'),
195 'HARTREE' => array('4.3597482e-18', 'Eh'),
196 'HECTOJOULE' => array('100', 'hJ'),
197 'HECTOWATT_HOUR' => array('360000', 'hWh'),
198 'HORSEPOWER_HOUR' => array('2684519.5', 'hph'),
199 'HUNDRED_CUBIC_FOOT_GAS' => array('108720000', 'hundred ft� gas'),
200 'INCH_OUNCE' => array('0.0070615518', 'in oc'),
201 'INCH_POUND' => array('0.112984825', 'in lb'),
202 'JOULE' => array('1', 'J'),
203 'KILOCALORIE_15C' => array('4185.8', 'kcal'),
204 'KILOCALORIE' => array('4186','8', 'kcal'),
205 'KILOCALORIE_THERMOCHEMICAL' => array('4184', 'kcal'),
206 'KILOELECTRONVOLT' => array('1.6021773e-16', 'keV'),
207 'KILOGRAM_CALORIE' => array('4185.8', 'kg cal'),
208 'KILOGRAM_FORCE_METER' => array('9.80665', 'kgf m'),
209 'KILOJOULE' => array('1000', 'kJ'),
210 'KILOPOND_METER' => array('9.80665', 'kp m'),
211 'KILOTON' => array('4.184e+12', 'kt'),
212 'KILOWATT_HOUR' => array('3600000', 'kWh'),
213 'LITER_ATMOSPHERE' => array('101.325', 'l atm'),
214 'MEGAELECTRONVOLT' => array('1.6021773e-13', 'MeV'),
215 'MEGACALORIE' => array('4186800', 'Mcal'),
216 'MEGACALORIE_15C' => array('4185800', 'Mcal'),
217 'MEGAJOULE' => array('1000000', 'MJ'),
218 'MEGALERG' => array('0.1', 'megalerg'),
219 'MEGATON' => array('4.184e+15', 'Mt'),
220 'MEGAWATTHOUR' => array('3.6e+9', 'MWh'),
221 'METER_KILOGRAM_FORCE' => array('9.80665', 'm kgf'),
222 'MICROJOULE' => array('0.000001', '�J'),
223 'MILLIJOULE' => array('0.001', 'mJ'),
224 'MYRIAWATT_HOUR' => array('3.6e+7', 'myWh'),
225 'NANOJOULE' => array('1.0e-9', 'nJ'),
226 'NEWTON_METER' => array('1', 'Nm'),
227 'PETAJOULE' => array('1.0e+15', 'PJ'),
228 'PETAWATTHOUR' => array('3.6e+18', 'PWh'),
229 'PFERDESTAERKENSTUNDE' => array('2647795.5', 'ps h'),
230 'PICOJOULE' => array('1.0e-12', 'pJ'),
231 'Q_UNIT' => array('1.0550559e+21', 'Q unit'),
232 'QUAD' => array('1.0550559e+18', 'quad'),
233 'TERAELECTRONVOLT' => array('1.6021773e-7', 'TeV'),
234 'TERAJOULE' => array('1.0e+12', 'TJ'),
235 'TERAWATTHOUR' => array('3.6e+15', 'TWh'),
236 'THERM' => array('1.0550559e+8', 'thm'),
237 'THERM_US' => array('1.054804e+8', 'thm'),
238 'THERMIE' => array('4185800', 'th'),
239 'TON' => array('4.184e+9', 'T explosive'),
240 'TONNE_COAL' => array('2.93076e+10', 'T coal'),
241 'TONNE_OIL' => array('4.1868e+10', 'T oil'),
242 'WATTHOUR' => array('3600', 'Wh'),
243 'WATTSECOND' => array('1', 'Ws'),
244 'YOCTOJOULE' => array('1.0e-24', 'yJ'),
245 'YOTTAJOULE' => array('1.0e+24', 'YJ'),
246 'YOTTAWATTHOUR' => array('3.6e+27', 'YWh'),
247 'ZEPTOJOULE' => array('1.0e-21', 'zJ'),
248 'ZETTAJOULE' => array('1.0e+21', 'ZJ'),
249 'ZETTAWATTHOUR' => array('3.6e+24', 'ZWh'),
250 'STANDARD' => 'JOULE'
